For some reason they were not taking their dead out. It even had a noticeable smell. So I took the nest out into a container. Imidiatly they rush out of the nest. And started taking out the dead ants. There were 1000s of dead bodies. Here are some pictures. The weird smell came from the dead ants.
I later connected it to their outworld. For them to move the brood. 2 days later the nest had no brood. I dump the rest in the outworld. Once all dead ants were removed. I calculate 2000 or more dead ants all 4 corners were blanket with bodies. The colony is at 10000 or more so it did not dent their numbers at all. There 100s of callow workers. There is not much space again.
Edited by anttics, September 4 2018 - 2:47 PM.